PULSED-LASER INDUCED DESORPTION AND SUBSEQUENT READSORPTION IN AMBIENT GAS

Citation
G. Holler et al., PULSED-LASER INDUCED DESORPTION AND SUBSEQUENT READSORPTION IN AMBIENT GAS, Applied physics letters, 62(22), 1993, pp. 2877-2879
Citations number
7
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
00036951
Volume
62
Issue
22
Year of publication
1993
Pages
2877 - 2879
Database
ISI
SICI code
0003-6951(1993)62:22<2877:PIDASR>2.0.ZU;2-Y
Abstract
We have investigated the phenomenon of readsorption after pulsed-laser induced thermal desorption during the presence of ambient gas. The te mporal evolution of the readsorption of water has been measured as a f unction of the ambient gas pressure for helium and carbon-dioxide atmo spheres. CO2 pressures above 10 mbar lead to a virtually complete read sorption of the desorbed material. A model based on a nearly one-dimen sional diffusion scheme explains this remarkable result.